Ruling · Guru Pūrṇimā · 1915

Monday 26 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 442 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Sunday 25 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

Midday of Monday 26 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 22:59 on Sun 25 Jul to 20:11 on Mon 26 Jul.

    1915-07-25T14:58:37Z → 1915-07-26T12:10:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 25th, 12:00–12:48 on the 26th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 26547 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1915: Monday 26 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1915 falls on Monday 26 July. Pūrṇimā runs from 22:59 on Sun 25 Jul to 20:11 on Mon 26 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1915/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 26 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 26 Jul
compat-drikpanchangComparison profileMon 26 Jul
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/guru-purnima · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 102

“S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles06:59 → 04:1111:3548 min11:350 min25 Jul
Chicago08:59 → 06:1111:3348 min11:330 min25 Jul
Jersey City09:59 → 07:1111:3848 min11:380 min25 Jul
Port of Spain10:59 → 08:1111:4848 min11:480 min25 Jul
London14:59 → 12:1111:420 min11:4228 min26 Jul
Durban16:59 → 14:1111:380 min11:3848 min26 Jul
Dubai18:40 → 15:5211:420 min11:4248 min26 Jul
Delhi20:29 → 17:4112:030 min12:0348 min26 Jul
Kolkata20:29 → 17:4111:190 min11:1948 min26 Jul
Singapore21:59 → 19:1111:470 min11:4748 min26 Jul
Sydney00:59 → 22:1111:380 min11:3848 min26 Jul
Suva02:54 → 00:0611:440 min11:4448 min26 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
guru-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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